I agree with mgottlieb, that your phono card will be max'ed out as far as gain. (I think you will be pushing your preamp gain up as well to get this cartridge to high sound levels.) I really think you need a gain of about 70-75 for that cartridge.
As far as loading, anything in the 85-100 range should be good, but it somewhat depends on your arm's cable. I suggest you experiment with the loading to see what sounds best, if you can.